My girlfriend makes fun of me a little bit for stocking up on things like water and fuel sources but I always throw out examples like the tornados that happened recently and other past events that weren't TEOTWAWKI but definitely threw off the balance of daily life for people. Those are the types of events I want to be prepared for at the very least. Ideally I would like to be good for at least a month as far as food and other supplies but I am not sure I will be at that point anytime soon.